Manage KlickTipp Contacts via Telegram Bot with GPT-5 mini Agent

Community Node Disclaimer: This workflow uses KlickTipp community nodes. How It Works AI Agent and KlickTipp Tools Integration via Telegram: This component connects a large language model (LLM), such as Claude or OpenAI, to the KlickTipp contact management platform through Telegram messaging. The AI Agent interprets natural language queries received from Telegram and dynamically maps them to KlickTipp API operations, enabling intuitive and automated contact handling through a familiar messaging interface. Key Features Telegram & LLM Interaction Setup: Captures messages received via Telegram bot as an alternative to the chat message node. Maintains conversation state using a memory buffer tie

Help me set up the n8n workflow "Manage KlickTipp Contacts via Telegram Bot with GPT-5 mini Agent" (https://n8n.io/workflows/5747). It uses: Telegram, AI Agent, OpenAI Chat Model, Simple Memory, Code Tool, OpenAI. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.